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Cheap flights from Louisville to Sydney from $728

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 6/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Louisville to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air New Zealand Logo
2:10 pm - 6:55 am
SDF
-
SYD
26h 45m
2 stops
Air New Zealand Logo
9:30 am - 7:00 pm
SYD
-
SDF
23h 30m
2 stops
$1,165Air New Zealand
Tue, Jun 9 - Wed, Jun 17
United Airlines Logo
3:25 pm - 7:00 am
SDF
-
SYD
25h 35m
2 stops
United Airlines Logo
9:30 am - 8:01 pm
SYD
-
SDF
24h 31m
2 stops
$1,166United Airlines
Sun, Jul 26 - Wed, Aug 5
United Airlines Logo
3:41 pm - 7:00 am
SDF
-
SYD
25h 19m
2 stops
United Airlines Logo
10:20 am - 8:23 pm
SYD
-
SDF
24h 03m
2 stops
$1,213United Airlines
Tue, Jul 28 - Fri, Aug 7
United Airlines Logo
3:25 pm - 7:00 am
SDF
-
SYD
25h 35m
2 stops
United Airlines Logo
9:30 am - 7:01 pm
SYD
-
SDF
23h 31m
2 stops
$1,214United Airlines
Sat, Jul 25 - Tue, Aug 4
United Airlines Logo
3:25 pm - 6:55 am
SDF
-
SYD
25h 30m
2 stops
United Airlines Logo
9:30 am - 8:23 pm
SYD
-
SDF
24h 53m
2 stops
$1,261United Airlines
Fri, Jun 5 - Fri, Jun 19
United Airlines Logo
8:00 am - 6:55 am
SDF
-
SYD
32h 55m
2 stops
United Airlines Logo
10:20 am - 2:28 pm
SYD
-
SDF
42h 08m
2 stops
$1,273United Airlines
Sat, Jul 25 - Fri, Aug 7
Delta Logo
10:00 am - 6:50 am
SDF
-
SYD
30h 50m
2 stops
Delta Logo
9:15 am - 7:11 pm
SYD
-
SDF
23h 56m
2 stops
$1,298Delta
Tue, Jul 28 - Wed, Aug 5
Delta Logo
1:02 pm - 6:50 am
SDF
-
SYD
27h 48m
2 stops
Delta Logo
9:15 am - 8:46 am
SYD
-
SDF
37h 31m
2 stops
$1,346Delta
Fri, Jul 31 - Sun, Aug 9
Delta Logo
4:28 pm - 6:50 am
SDF
-
SYD
48h 22m
2 stops
Delta Logo
9:15 am - 11:56 pm
SYD
-
SDF
28h 41m
2 stops
$1,362Delta
Sat, Jul 25 - Sat, Aug 8
Multiple Airlines Logo
9:21 am - 7:30 am
SDF
-
SYD
32h 09m
1 stop
Multiple Airlines Logo
1:15 pm - 7:48 pm
SYD
-
SDF
44h 33m
2 stops
$1,370Multiple Airlines
Wed, Jul 29 - Sun, Aug 9

Delta flights from Louisville to Sydney

Our best Delta deals on Louisville to Sydney flight tickets
Delta
Jul 28
SDF10:00 amLouisville Intl
30h 50m
2 stops
SYD6:50 amSydney Kingsford Smith
Aug 5
SYD9:15 amSydney Kingsford Smith
23h 56m
2 stops
SDF7:11 pmLouisville Intl
$1,298
Delta
Jul 31
SDF1:02 pmLouisville Intl
27h 48m
2 stops
SYD6:50 amSydney Kingsford Smith
Aug 9
SYD9:15 amSydney Kingsford Smith
37h 31m
2 stops
SDF8:46 amLouisville Intl
$1,346
Delta
Jul 25
SDF4:28 pmLouisville Intl
48h 22m
2 stops
SYD6:50 amSydney Kingsford Smith
Aug 8
SYD9:15 amSydney Kingsford Smith
28h 41m
2 stops
SDF11:56 pmLouisville Intl
$1,362

Qantas Airways flights from Louisville to Sydney

Our best Qantas Airways deals on Louisville to Sydney flight tickets
Qantas Airways
Aug 26
SDF7:03 pmLouisville Intl
21h 52m
1 stop
SYD6:55 amSydney Kingsford Smith
Sep 5
SYD12:00 pmSydney Kingsford Smith
24h 17m
1 stop
SDF10:17 pmLouisville Intl
$1,918
Qantas Airways
Aug 26
SDF4:01 pmLouisville Intl
25h 04m
2 stops
SYD7:05 amSydney Kingsford Smith
Sep 5
SYD12:00 pmSydney Kingsford Smith
24h 17m
1 stop
SDF10:17 pmLouisville Intl
$1,961
Qantas Airways
May 24
SDF8:00 amLouisville Intl
32h 25m
1 stop
SYD6:25 amSydney Kingsford Smith
May 27
SYD12:00 pmSydney Kingsford Smith
19h 32m
1 stop
SDF5:32 pmLouisville Intl
$2,934

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 12, 2026.
Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/9

2:10 pm-6:55 am

2 stops26h 45m

Sydney Kingsford Smith

Wed 6/17

9:30 am-7:00 pm

2 stops23h 30m

$1,165

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 7/26

3:25 pm-7:00 am

2 stops25h 35m

Sydney Kingsford Smith

Wed 8/5

9:30 am-8:01 pm

2 stops24h 31m

$1,166

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 7/28

3:41 pm-7:00 am

2 stops25h 19m

Sydney Kingsford Smith

Fri 8/7

10:20 am-8:23 pm

2 stops24h 03m

$1,213
Quickest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 7/25

3:25 pm-7:00 am

2 stops25h 35m

Sydney Kingsford Smith

Tue 8/4

9:30 am-7:01 pm

2 stops23h 31m

$1,214

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 6/5

3:25 pm-6:55 am

2 stops25h 30m

Sydney Kingsford Smith

Fri 6/19

9:30 am-8:23 pm

2 stops24h 53m

$1,261

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 7/25

8:00 am-6:55 am

2 stops32h 55m

Sydney Kingsford Smith

Fri 8/7

10:20 am-2:28 pm

2 stops42h 08m

$1,273

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 7/28

10:00 am-6:50 am

2 stops30h 50m

Sydney Kingsford Smith

Wed 8/5

9:15 am-7:11 pm

2 stops23h 56m

$1,298

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 7/31

1:02 pm-6:50 am

2 stops27h 48m

Sydney Kingsford Smith

Sun 8/9

9:15 am-8:46 am

2 stops37h 31m

$1,346

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 7/25

4:28 pm-6:50 am

2 stops48h 22m

Sydney Kingsford Smith

Sat 8/8

9:15 am-11:56 pm

2 stops28h 41m

$1,362

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 7/29

9:21 am-7:30 am

1 stop32h 09m

Sydney Kingsford Smith

Sun 8/9

1:15 pm-7:48 pm

2 stops44h 33m

$1,370

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Sydney from

How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Louisville and Sydney?

What is the cheapest month to fly to Sydney?

In general, March is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Sydney during the month of March, then departing from Louisville during the month August is also very affordable. Most momondo users find prices during this month for around $1,167.

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 18% on your flight if you consider stops on a Louisville to Sydney flight.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Fastest flight time

25h 25m

Direct flights

None
The fastest flight from Louisville to Sydney takes 25h 25m
There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.
Search flight deals

Frequently asked questions about flying from Louisville to Sydney

  • How far is Louisville Intl to Sydney Kingsford Smith by plane?

    A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 25h 25m.

  • When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to Sydney?

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $662Free CancellationRating
7.9
8,446 reviews
Search Delta flights
United AirlinesPriceFrom $973Free CancellationRating
7.4
9,701 reviews
Search United Airlines flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Katoomba
Wollongong
Penrith
Leura
Randwick
Lithgow
Manly
Coogee
Cronulla
Terrigal
Charlestown
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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